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reform

American  
[ri-fawrm] / rɪˈfɔrm /

noun

  1. the improvement or amendment of what is wrong, corrupt, unsatisfactory, etc..

    social reform; spelling reform.

    Synonyms:
    amelioration, betterment, reformation, correction
    Antonyms:
    deterioration
  2. an instance of this.

  3. the amendment of conduct, belief, etc.


verb (used with object)

  1. to change to a better state, form, etc.; improve by alteration, substitution, abolition, etc.

    Synonyms:
    restore, repair, ameliorate, emend, amend, correct, rectify, better
  2. to cause (a person) to abandon wrong or evil ways of life or conduct.

  3. to put an end to (abuses, disorders, etc.).

  4. Chemistry. to subject to the process of reforming, as in refining petroleum.

verb (used without object)

  1. to abandon evil conduct or error.

    The drunkard promised to reform.

adjective

  1. (initial capital letter) of, relating to, or characteristic of Reform Jews or Reform Judaism.

    a Reform rabbi.

reform British  
/ rɪˈfɔːm /

verb

  1. (tr) to improve (an existing institution, law, practice, etc) by alteration or correction of abuses

  2. to give up or cause to give up a reprehensible habit or immoral way of life

  3. chem to change the molecular structure of (a hydrocarbon) to make it suitable for use as petrol by heat, pressure, and the action of catalysts

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. an improvement or change for the better, esp as a result of correction of legal or political abuses or malpractices

  2. a principle, campaign, or measure aimed at achieving such change

  3. improvement of morals or behaviour, esp by giving up some vice

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of reform

First recorded in 1300–50; (for the verb) Middle English reformen, from Middle French reformer, Old French, from Latin refōrmāre; equivalent to re- + form; noun derivative of the verb

Explanation

When you reform something, you change it for the better. If you're running for President, you might promise to reform government, although it's easier to promise reform than to actually accomplish it. If you take the parts of reform, re- and form, you can see that it means “to shape again.” We often use it to talk about correcting what's wrong in a system, and if you reform something, you make it better and more fair. Juvenile delinquents might be sent to reform school to become better people. Someone fighting alcoholism might try to reform her ways. It's not always about morals: in chemistry, you reform molecules by breaking them apart.

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Vocabulary lists containing reform

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It’s critical, Meaney suggested, for city leaders to push for charter reform that puts infrastructure authority under a newly empowered public works director.

From Los Angeles Times • May 16, 2026

And that list doesn't even touch the biggest structural challenges: social care for the elderly, and a welfare reform programme that remains, for now, a promise without a bill.

From BBC • May 16, 2026

It is a dramatic turnaround for a sector that crashed to 48,000 tonnes in 2008 in the wake of a botched government land reform programme that led to the seizure of hundreds of commercial farms.

From Barron's • May 15, 2026

“Growth-led reform succeeds only where deregulation is paired with sharper accountability, not weaker protection,” he says.

From The Wall Street Journal • May 14, 2026

I scoffed as I scanned over an opinion piece calling for the assimilation of Eastern European immigrants into Chicago’s well-established German reform community.

From "The City Beautiful" by Aden Polydoros

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